By Lawrence Li & J Robert Gibson Could there be a greater contrast between the downbeat atmosphere and near-tears when conference president Alok Sharma quietly tapped the gavel to signal acceptance of the Glasgow Climate Pact, and the joy when the gavel came down to approve the 2015 Paris Agreement? Scientists have long argued that the global temperature rise must be kept well below 1.5°C by mid-century to avoid the potentially catastrophic impacts of climate change, including extreme heat and storm surges. They have urged countries to commit to an interim target of reducing emissions by 50 pe…

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